From 52398a6b569c8de55b4e4ee931c82e47e2ee4b31 Mon Sep 17 00:00:00 2001 From: jim-p Date: Fri, 30 May 2014 14:10:18 -0400 Subject: Bring in proper gmirror support for the GUI and notifications. Made a general gmirror library to perform various gmirror tasks and get information, using some of the former widget logic to start. Updated widget to use this new code. Added a Diag > GEOM Mirrors page that displays information about existing mirrors and perform various management tasks. Current actions include rebuilding a drive, forgetting disconnected mirror drives, insert/remove, deactivate/activate, clearing medatada. It's now possible to use the GUI to rebuild a failed mirror by performing a forget, then insert action to replace a missing/dead drive. Also included is a notification setup. Mirror status is polled every 60 seconds, and if any aspect of the mirror changes, notifications are issues that alert in the GUI and by SMTP, etc. --- etc/inc/gmirror.inc | 313 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 313 insertions(+) create mode 100644 etc/inc/gmirror.inc (limited to 'etc/inc/gmirror.inc') diff --git a/etc/inc/gmirror.inc b/etc/inc/gmirror.inc new file mode 100644 index 0000000..917427d --- /dev/null +++ b/etc/inc/gmirror.inc @@ -0,0 +1,313 @@ + 0) { + /* Loop through gmirror status output. */ + foreach ($status as $line) { + /* Split the line by whitespace */ + $all = preg_split("/[\s\t]+/", trim($line), 3); + if (count($all) == 3) { + /* If there are three items on a line, it is mirror name, status, and component */ + $currentmirror = basename($all[0]); + $mirrors[$currentmirror]['name'] = basename($all[0]); + $mirrors[$currentmirror]['status'] = $all[1]; + if (!is_array($mirrors[$currentmirror]['components'])) + $mirrors[$currentmirror]['components'] = array(); + $mirrors[$currentmirror]['components'][] = $all[2]; + } + } + } + /* Return an hash of mirrors and components */ + return $mirrors; +} + +/* Get only status word for a single mirror. */ +function gmirror_get_status_single($mirror) { + $status = ""; + $mirror_status = gmirror_get_status(); + var_dump($mirror_status); + return $mirror_status[$mirror]['status']; +} + +/* Generate an HTML formatted status for mirrors and disks in a small format for the widget */ +function gmirror_html_status() { + $mirrors = gmirror_get_status(); + $output = ""; + if (count($mirrors) > 0) { + $output .= "\n"; + $output .= "Name\n"; + $output .= "Status\n"; + $output .= "Component\n"; + $output .= "\n"; + foreach ($mirrors as $mirror => $name) { + $components = count($name["components"]); + $output .= "\n"; + $output .= "{$name['name']}\n"; + $output .= "{$name['status']}\n"; + $output .= "{$name['components'][0]}\n"; + $output .= "\n"; + if (count($name["components"]) > 1) { + $morecomponents = array_slice($name["components"], 1); + foreach ($morecomponents as $component) { + $output .= "\n"; + $output .= "{$component}\n"; + $output .= "\n"; + } + } + } + } else { + $output .= "No Mirrors Found\n"; + } + // $output .= "Updated at " . date("F j, Y, g:i:s a") . "\n"; + return $output; +} + +/* List all disks in the system (potential gmirror targets) */ +function gmirror_get_disks() { + $disklist = ""; + /* Get a list of disks in a scriptable way, exclude optical drives */ + exec("/sbin/geom disk status -s | /usr/bin/grep -v '[[:blank:]]*cd[[:digit:]]*' | /usr/bin/awk '{print $1;}'", $disklist); + return $disklist; +} + +/* List all potential gmirror consumers */ +function gmirror_get_unused_consumers() { + $consumerlist = ""; + /* Get a list of consumers, exclude existing mirrors and diskid entries */ + exec("/sbin/geom part status -s | /usr/bin/egrep -v '(mirror|diskid)' | /usr/bin/awk '{print $1, $3;}'", $consumerlist); + $all_consumers = array(); + foreach ($consumerlist as $cl) { + $parts = explode(" ", $cl); + foreach ($parts as $part) + $all_consumers[] = $part; + } + return $all_consumers; +} + +/* List all existing geom mirrors */ +function gmirror_get_mirrors() { + $mirrorlist = ""; + exec("/sbin/gmirror list | /usr/bin/grep '^Geom name:' | /usr/bin/awk '{print $3;}'", $mirrorlist); + return $mirrorlist; +} + + +/* List all consumers for a given mirror */ +function gmirror_get_consumers_in_mirror($mirror) { + if (!is_valid_mirror($mirror)) + return array(); + + $consumers = array(); + exec("/sbin/gmirror status -s " . escapeshellarg($mirror) . " | /usr/bin/awk '{print $3;}'", $consumers); + return $consumers; +} + +/* Test if a given consumer is a member of an existing mirror */ +function is_consumer_in_mirror($consumer, $mirror) { + if (!is_valid_consumer($consumer) || !is_valid_mirror($mirror)) + return false; + + $mirrorconsumers = gmirror_get_consumers_in_mirror($mirror); + return in_array(basename($consumer), $mirrorconsumers); +} + +/* Test if a mirror exists */ +function is_valid_mirror($mirror) { + $mirrors = gmirror_get_mirrors(); + return in_array($mirror, $mirrors); +} + +/* Test if a disk is valid/exists */ +function is_valid_disk($disk) { + $adisks = gmirror_get_disks(); + return in_array(basename($disk), $adisks); +} + +/* Test if a consumer is valid and in use in a mirror */ +function is_consumer_used($consumer) { + $found = false; + $mirrors = gmirror_get_mirrors(); + foreach ($mirrors as $mirror) { + $consumers = gmirror_get_consumers_in_mirror($mirror); + if (in_array($consumer, $consumers)) + return true; + } + return false; +} + +/* Test if a consumer is valid and not in use */ +function is_consumer_unused($consumer) { + $consumers = gmirror_get_unused_consumers(); + return in_array($consumer, $consumers); +} + +/* Test if a consumer is valid (either a disk or partition) */ +function is_valid_consumer($consumer) { + return (is_consumer_unused($consumer) || is_consumer_used($consumer)); +} + +/* Remove all disconnected drives from a mirror */ +function gmirror_forget_disconnected($mirror) { + if (!is_valid_mirror($mirror)) + return false; + return mwexec("/sbin/gmirror forget " . escapeshellarg($mirror)); +} + +/* Insert another consumer into a mirror */ +function gmirror_insert_consumer($mirror, $consumer) { + if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) + return false; + return mwexec("/sbin/gmirror insert " . escapeshellarg($mirror) . " " . escapeshellarg($consumer)); +} + +/* Remove consumer from a mirror and clear its metadata */ +function gmirror_remove_consumer($mirror, $consumer) { + if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) + return false; + return mwexec("/sbin/gmirror remove " . escapeshellarg($mirror) . " " . escapeshellarg($consumer)); +} + +/* Wipe geom info from drive (if mirror is not running) */ +function gmirror_clear_consumer($consumer) { + if (!is_valid_consumer($consumer)) + return false; + return mwexec("/sbin/gmirror clear " . escapeshellarg($consumer)); +} + +/* Find the balance method used by a given mirror */ +function gmirror_get_mirror_balance($mirror) { + if (!is_valid_mirror($mirror)) + return false; + $balancemethod = ""; + exec("/sbin/gmirror list " . escapeshellarg($mirror) . " | /usr/bin/grep '^Balance:' | /usr/bin/awk '{print $2;}'", $balancemethod); + return $balancemethod[0]; +} + +/* Change balance algorithm of the mirror */ +function gmirror_configure_balance($mirror, $balancemethod) { + if (!is_valid_mirror($mirror) || !in_array($balancemethod, $balancemethods)) + return false; + return mwexec("/sbin/gmirror configure -b " . escapeshellarg($balancemethod) . " " . escapeshellarg($mirror)); +} + +/* Force a mirror member to rebuild */ +function gmirror_force_rebuild($mirror, $consumer) { + if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) + return false; + return mwexec("/sbin/gmirror rebuild " . escapeshellarg($mirror) . " " . escapeshellarg($consumer)); +} + +/* Show all metadata on the physical consumer */ +function gmirror_get_consumer_metadata($consumer) { + if (!is_valid_consumer($consumer)) + return array(); + $output = ""; + exec("/sbin/gmirror dump " . escapeshellarg($consumer), $output); + return array_map('trim', $output); +} + +/* Test if a consumer has metadata, indicating it is a member of a mirror (active or inactive) */ +function gmirror_consumer_has_metadata($consumer) { + return (count(gmirror_get_consumer_metadata($consumer)) > 0); +} + +/* Find the mirror to which this consumer belongs */ +function gmirror_get_consumer_metadata_mirror($consumer) { + if (!is_valid_consumer($consumer)) + return array(); + $metadata = gmirror_get_consumer_metadata($consumer); + foreach ($metadata as $line) { + if (substr($line, 0, 5) == "name:") { + list ($key, $value) = explode(":", $line, 2); + return trim($value); + } + } +} + +/* Deactivate consumer, removing it from service in the mirror, but leave metadata intact */ +function gmirror_deactivate_consumer($mirror, $consumer) { + if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) + return false; + return mwexec("/sbin/gmirror deactivate " . escapeshellarg($mirror) . " " . escapeshellarg($consumer)); +} + +/* Reactivate a deactivated consumer */ +function gmirror_activate_consumer($mirror, $consumer) { + if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) + return false; + return mwexec("/sbin/gmirror activate " . escapeshellarg($mirror) . " " . escapeshellarg($consumer)); +} + +/* Find the size of the given mirror */ +function gmirror_get_mirror_size($mirror) { + if (!is_valid_mirror($mirror)) + return false; + $mirrorsize = ""; + exec("/sbin/gmirror list " . escapeshellarg($mirror) . " | /usr/bin/grep 'Mediasize:' | /usr/bin/head -n 1 | /usr/bin/awk '{print $2;}'", $mirrorsize); + return $mirrorsize[0]; +} + +/* Return a list of all potential consumers on a disk with sizes. The geom part + list output is a little odd, we can't get the output for just the disk, if the disk contains + slices those get output also. */ +function gmirror_get_all_unused_consumer_sizes_on_disk($disk) { + if (!is_valid_disk($disk) || !is_consumer_unused($disk)) + return array(); + $output = ""; + exec("/sbin/geom part list " . escapeshellarg($disk) . " | /usr/bin/egrep '(Name:|Mediasize:)' | /usr/bin/cut -c4- | /usr/bin/sed -l -e 'N;s/\\nMediasize://;P;D;' | /usr/bin/cut -c7-", $output); + $disk_contents = array(); + foreach ($output as $line) { + list($name, $size, $humansize) = explode(" ", $line, 3); + $consumer = array(); + $consumer['name'] = $name; + $consumer['size'] = $size; + $consumer['humansize'] = $humansize; + $disk_contents[] = $consumer; + } + return $disk_contents; +} + +/* Get only the size for one specific potential consumer. */ +function gmirror_get_unused_consumer_size($consumer) { + $consumersizes = gmirror_get_all_unused_consumer_sizes_on_disk($consumer); + foreach ($consumersizes as $csize) { + if ($csize['name'] == $consumer) + return $csize['size']; + } + return -1; +} +?> \ No newline at end of file -- cgit v1.1